Hello, I recently purchased a 150BT used. Do you know what the resistance is on the coil unit b4 I deam it bad? The unit is in good shape. I did a full tune up upon purchase. All Husq OEM parts. husq oil and high test non ethanol fuel. Ran the unit for about 4 hours (non continuous) and now when warm is develops a pretty healthy skip. tested kill switch (good), no intake or exhaust restrictions,compression primary and secondary in spec, carb clean, fuel filter clean, unit is developing weak spark, coil gap is good.